Question

1.
If in ∆ABC, a = 4, b = 5 and c=3, then r=
1)1
2)2
3)3
4)4​

Answer 1

the answer is r=2

so a=4 and b=5 and c=3 you see they are counting backwards like they see 4 then 5 and 3 so 1 come next